Tell him to sharpen his broadheads and he won't have that problem. Dull BH's will cause those kind of things.

If you send a razor sharp BH thru both lungs, no deer is going to live 4 hours. Or travel a mile.

I double lunged a 7 point in 1999. 15 yrd shot watched the arrow punch throughh the top of one lung and exit out the bottom on the oppisite side. The derr spun around ran not more than 40 yrds. I watched him pile up on the ridge beside me. After I regainded my composure I went to retrieve him (20 minutes or so). When I topped the ridge and approached him he sprang back to life and left the country. I backed out, went to get some help for the tracking job and came back about 2 hrs latter. The deer only went about 60 - 70 more yards but, I was dumb founded that he was even able to lift his head! Granted this was not 4 hrs. but them dudes can be pretty tough!

ANYTHING IS POSSIBLE????

Absolutely right on, VA .... I got your back ...

Ya ther tough!
About 5 years back I had wiped out bird hunting landing on a pointy boulder and bruised 3 ribs my kidney and lung.
So after I healed (ya-sure) I went out muzzleloading 6-days later.
A 6 pointer came into my stand about 40 yards away and had to lean way over to get the shot off.
Talk about pain... Well the shot was off by a foot and went right through the gut.
The buck ran 40 yards and I could see the intestines hanging out, so I reloaded and shot him again.
The angle on the 2nd shot was almost facing away, so I picked the bulge on his gut a squeezed the trigger.
At least this shot I could hold steady using my knee as the gun rest. I waited 10 minutes and went to get him.
Well, he ran off and I decided to give him another 20 minutes, running another 125 yards before dying.
After gutting out the huge mess, the 2nd bullet went through his whole stomach and into his chest, it buried into his front shoulder and nipped his heart.

To answer your question: Physics namely a lack of negative intrapleural pressure.

When mammals breathe they do so by contracting their diaphragm muscle. The diaphragm is not directly attached to the lungs. The lungs are surrounded by a layer of slimy tissue called the pleura. There is also a layer of pleura on the inside of the diaphragm, the ribs and surroungding the heart. The pleura is waterproof and airtight, think of saran wrap. The pressure inbetween the layers of pleura is lower than outside air. When the diaphragm and other breathing muscles (internal intercostals, sternocleidomastoids, etc) contract they pull the ribs and diaphragm away from the lungs. Since the pleureal pressure is less than outside air and also less than inside the lungs, the pleural layers "stick" together and the external pleural layer pulls the internal pleural layer with it expanding the lungs causing negative pressure in the lungs relative to the external air and air comes in.

When the pleural seal is broken, the diaphragm and other breathing muscles can contract all they want and it's not gonna do a damn thing because the pleural space has lost its pressure gradient relative to the external air and the air in the lungs. With the pleural space interrupted on both sides as in a true double lung shot, it is impossible for a deer or any other animal to breathe. This means they will be able to go as far as the oxygen they currently have in their blood will take them and no further. Realistically this means death in seconds, not minutes and definitely not hours.

If a deer is "double-lunged" and live for minutes or even hours afterwards, both lungs were no punctured.




To address the first part, a human can survive a second collapsed lung if and only if they have a chest tube or some other similar type device working to re-expand the 1st collapsed lung. I love deer and I know how to put chest tubes in, but I have never seen a deer with a chest tube in nor can I envision a scenario where I would even think about putting a chest tube in a deer. As such, deer CANNOT survive having bilateral collapsed lungs.

The buck I shot 02 ran near a 1/2 mile before dropping with no heart, figure that one out.....

Exactly
I am postive most hunters look at where the arrow entered and exited to tell if it was a doublelung. I look at the lungs and look on every shot. All I can say is I never seen a deer I shotrun more than 80 yds with a double lung shot.

In my 20+ year I have leanred one thing, a lot of people who hunt really don't know anything about whitetails[&:]

I understand you guys not believing my story, but I swear it is true. Now, I will fully admit that the buck that lived 6 hours was a back of both lungs slice and not a full punch through and obviously wasn't a great shot. However, the 9 point my dad shot in 1991 in Vinton county Ohio went (guesstimated here) 1.5 miles. He was shooting 125gr Thunderheads (3-blade). It was a miracle he found that deer as it piled up under a bush. Both lungs had been punched clean through. Not looking at entry/exit holes, looking at the lungs upon gutting the deer.

You can call me a liar and I wouldn't really blame you b/c if I didn't know any better I would be thinking the same thing, but it happened. I can't explain it but it happened.

When my father worked in the ER he also treated a man who had been shot in the head at point blank range with a .22 and he was sitting up talking. The bullet entered right between the eyes, just above the eyebrows and lodged in the back of his head. He should have died but he didn't. Anything is possible... just improbable.

Good point. Adrenaline can take a buck longer than he is 'anatomically and physiologically' possible. But four hours is quite some time. Gut shot deer often die sooner that if they havent been pushed.

I learned this lesson in 2006. My 10 point I made a double lung hit (comfirmed in field dressing) he run about 300 yards. We found him about an hr. after I shot him and he was still alive. It took him about 1:15 to die.